Street-sweeper



(No Model.) 5 SheetsSheet 1.

' E. BRENTLINGER.

STREET SWEEPER.

ted Oct. 5,1897.

INVENTUR: Wwfifl; ATTURNEY:

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E. BRENTLINGER.

STREET SWEEPBR.

No. 591,206. Patented Oct. 5,1897.

(No Model.) 5 Sheets-Sheet 3.

E. BRENTLINGER STREET SWEEPER. NO. 691,206. Patented Oct. 5,1897.

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No. 591,206. Patented Oct. 5,1897.

INVENTDR- w ATTuFmai WITNESSES:

5 MW e h S F a e h S 5 R E G N T L T N E R B E M m M 0 W STREET SWBEPBR.

Patented Oct. 5,1897.

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. UNITED STATES PATENT Orricn.

ELLSWVORTI-I BRENTLINGER, OF DAYTON, OHIO.

STREET-SWEEPER.

SPECIFICATION forming part of Letters Patent No. 591,206, dated october 5, 1897. Application filed January 28, 1897. Serial No. 621,069. (No model.)

T0 mZZ whom it may concern.-

Be it known that I, ELLswoR'rH BRENT- LINGER, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Street-Sweepin g Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to themcompanyin g drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to new and useful improvements in street-sweepers, and combines means for sweeping dirt onto a rotating carrier and depositing it into a receptacle and means for removing said dirt from the machine.

To these ends the improvements relate, first,

.to a dust-proof inclosing case or box located beneath the frame of the sweeper and the means for mounting said casing; secondly, to a carrier mounted parallel with the rotating brush and which deposits the dirt into a receptacle located on one side of the frame of the sweeper; thirdly, to movable guide-plates arranged in a position to insure the passage of the dirt to said carrier; fourthly, to a ro tating-brush adjacent to the delivery end of the carrier to free it of any dirt that might have a tendency to cling to the carrier; fifthly, to a wagon-bed removably mounted on the frame of the sweeper and mechanism for removing said wagon-bed, all as will be hereinafter more fully described in connection with the accompanying drawings, of which Figure 1 is a side elevation; Fig. 2, a plan view with the rear portion of the wagon-bed removed; Fig- 3, a plan view with a portion of the sweeper-frame removed; Fig. 4, a plan view with the entire wagon-bed removed; Fig. 5, a cross-sectional view of the dust-proof inclosing box or casing and the mechanism therein; Fig. 6, an enlarged detail viewof a portion of the carrier; Fig. 7, an enlarged sectional View on the line a co of Fig. 3; Fig. 8, a side elevation of a portion of the front end of the wagon-bed, showing a portion of the elevating mechanism; Fig. 9, s a detail detached view of portions of two adjoining movable guide-plates Fig. 10, an enlarged section taken vertically through the movable guideplates; Fig. 11, an enlarged detail view of one of the sliding supporting-rods attachable to each of the lower movable plates; Fig. 12, a plan View of a portion of the carrier and the driving-gears therefor; Fig. 13, an elevation of the delivery end of the carrier and the carrier-brush; Fig. 14, an end elevation of the gearing of the carrier-roller and brush as shown in Fig. 13; Fig. 15, a vertical section through the center of Fig. 13; Fig. 16, an elevation of aportion of one end of the casing; Fig. 17, an elevation looking in the direction of" the horizontal arrow, Fig. 16; Fig. 18, a View looking in the direction of the vertical arrow, Fig. 16.

Throughout the specification similar reference-characters indicate corresponding parts in the various views.

The sweeper truck or frame A is constructed substantially as is shown in Figs. 2

the severalplan views in order that the structural features of the parts below said platform may be seen. The frame A is mounted on front and rear wheels 0 O and DD. The axle of the latter wheels spans the widest part of the frame, and from it power is transmitted to drive a rotary brush E and a carrier F,

of which is rigidly attached to the ends of the case G and the latter is movably held in position by bolts 3, which pass through openings in both of said parts and are controlled by coilsprings 4. The movements of the lower part 2 are guided by plates 5, which in- .close openings in the ends of the casing.

These plates are rigidly attached to theparts 2 and slide in ways 6 on the inner ends of the It is essential to have the openings casing. in the ends of the casing in order to obtain a connection between the lower parts 2 of the boxes and the said plates. The plates also serve to close up said openings, and thereby prevent any escape of dust. To enable the mounting or removal of the brush from said bearings, the ends of the casing are provided with horizontal slots 7, that are normally closed by plates 8. These plates are supported in guides 9 9 and are held in their places by the hinged part G of the case. The interior of the case G is thus inclosed to prevent any dust from escaping. The floor of said case has an opening through which the brush projects, as shown in Fig. 5. The rear end of said case incloses the brush E and is support-ed on the shaft thereof. The front end of said case has essentially a flexible connection 11 with the frame of the sweeper through means of drag-bars 1O 10, of which there is one on each side. The upper ends of said drag-bars have adjustable connections with the frame, and their lower ends are attached to the shaft of the brush on the outside of the case. The front end of the case is mainly and flexibly supported by means of chains 11, of which there is one on each side of the frame. These chains are also attached to the dragbars and have their upper ends connected to hooks or arms 12, which project from a transverse shaft 13, rotatably mounted in bearings in the frame and extending approximately the length of the case G. The shaft 13 is maintained in a position to support the case G through the arms 12 and the flexible connections 11 by means of a weighted lever 14, which is on said shaft near one end.

F designates a carrier which is mounted in the front part of the case G, parallel with the brush E. This carrier travels 011 rollers 16 17, the journals of which are mounted in bearings in the front wall of the case G and in an upright angle-iron 1S, projecting from the bottom of the case and extending throughout the length of said case. The carrier F consists of a non-expansible belt that is flexibly connected at its edges to sprocket-chains 19 by links 20. Each two alternate links 20 have flexibly connected to them a transverse rib or bar 21, that lies across the carrier and serves to hold the dirt upon the carrier and to stiffen said carrier. (See Fig. 6.) The brush E and carrier F are simultaneously driven from the main axlethe brush through a chain 22, that surrounds a sprocket-wheel 22 on the shaft of said brush, and the carrier through a chain 23, that surrounds a sprocket-wheel 23 on a short shaft 23. There is also a crown gear-wheel 23 on the shaft 23, that gears with a pinion 23 on the shaft of the adjacent roller of the carrier. (See Figs. 2, 4, and 12.) The chains 22 and 23 are driven from wheels 22 and 23 on a stubshaft 24. This latter shaft is geared to the axle of the carrying-wheels D D through a spur-gear 25 on said axle and a spur-pinion 26 on said shaft. This gearing is located on one side of the frame, as shown in Figs. 1-

and 4.

27 and 28 designate, respectively, two series of plates movably mounted throughout the length of the case G, between the carrier and the brush. The upper series of plates overlap the lower ones, and the two series form an inclined guideway to direct the dirt, or a portion of it, to the carrier. The lower series of said plates project through the opening in the bottom of the case and in juxtaposition to the brush, so that the dirt swept .by the rotating brush will pass up said plates and onto the carrier. Owing to the liability of the lower plates coming in contact with obstructions in the street it is essential that the plates have a pivoted connection in order that they may yield on such occasions and return to their proper position when the obstruction is passed over. The mounting of these plates is clearly shown in Figs. 9 and 10, in which 29 and 29 designate two rods extending throughout the length of the case G and having their ends rigidly mounted in bearings in the ends of the casing. There are also two series of brackets 30 and 31 extending throughout the length of the rods, and in which they are supported at intermediate points. These brackets are rigidly secured to angle-irons 18 and 32, that are fast to the floor of the case. The positions of said brackets are at the ends of the plates, where they project through the intervening openings between each two of said plates and prevent said plates from coming together at their ends. The plates have a hinged connection on each side of the brackets with the rods 29 and 29 by means of curved plates or clamps 33, which loosely inclose said rods. It will be seen from Fig. 10 that there is an excess of weight below the pivotal connection of said plates with the rods. This serves to maintain said plates normally in an inclined position, as shown. In the event of the lower plates, or one of them, coming in contact with an obstruction they will be moved against the pressure of a coil-spring 34, one end of each of said springs being attached to the inner side of each of the lower plates 28 and the other end of each of said springs being attached to the angle-iron 18. These springs are supported on rods consisting of two sliding parts 35 and 36, which are also secured to the plates 28 and angle-iron 18. When the obstruction is passed, the compression of the spring on the plate affected will return said plate to its 7 normal position. The weight of the upper plate will cause it to follow.

Thus far I have described the dust-proof case, the rotary brush inclosed therein, the carrier to receive the dirt directly from said brush, and the inclined plates to direct said dirt onto the carrier. There is also provided means for directing onto the carrier dirt that may be thrown against the front wall of the case G. These means consist of a curved shield 37, attached to the case G and projecting over the outer side of the carrier, as shown'in Fig. 5. The carrier delivers the dirt into a receptacle II, mounted on a side of the sweeper-frame, from which it is. removable to the wagon-bed I, of which further mention will be made. In order to prevent any of the dirt from following around the delivery end of the carrier, I mount a rotating brush J parallel with the end of the carrier, as shown in Figs. 13 and 15. This brush rotates in contact with the lower side of the carrier and prevents the return of dirt on said carrier and keeps it clean. The said brush is mounted in standards 38, or in any suitable way to enable its being driven by a chain 39 from the shaft of the carrier-roller. The wagon-bed I is connected to the sweeperframe by a kingbolt and fifth-wheel, the

usual mannerof connecting a wagon-bed to a running-gear. The position of the front end of the wagon-bed is close to the dirt-box 11, so that the dirt may be transferred to the former from the latter manually without the loader changing his position. When the wagon-bed is thus loaded, it may be detached from the sweeper-frame, moved onto a pair of wheels, and hauled away to the dumpingplace. An empty wagon-bed is then placed on the sweeper. The front wheels of the wagon-bed are permanent and form the rear wheels when the wagon-bed is connected to the sweeper-frame. When the wagon-bed is loaded from the receptacle H, its detachment and removal from the sweeper-frame is effected through the following means:

40 and 41 designate arms that project from a transverse shaft 42, that is rotatably mounted in bearings on the sweeper-frame below the wagon bed. On these arms there is mounted a roller 43, that. also lies below the wagon-bed. The shaft 42 has an operatinglever 44,'connected to it at one side of the wagon-bed, and by means of which the shaft may be turned to elevate the arms and the roller 43.- This elevation of said roller will simultaneously elevate the front end of the wagon-bed and roll it rearwardly a distance. A-further movement is then given it onto a pair of wheels which have been placed in position thereunder by means of a roller 45, which lies in a track or channel 46 in the under side of the wagon-bed, as shown in Fig. 7. This track extends throughout the length of the wagon-bed, is centrally located, and projects forwardly slightly beyond the front end of the bed in order that the bed may be moved to a suitable position'by the rollers to receive the extra set of wheels before said bed is entirely clear of the sweeper-frame. A stop 47 is provided on the forward end of the track 46 to prevent the bed from running entirely away from the sweeper-frame before it is in position on the extra set of wheels. The roller is mounted in two standards 48, that project from a rotatable shaft 49. The latter shaft is journaled in bearings on the sweeper-frame similar to the shaft 42, and is also operated in a similar manner by a hand-. lever 50. The levers 44 and 50 may be locked in segment-ratchets .51 and 52 to support the wagon-bed when elevated preparatory to its removal; The operation of the first-named roller'through lever 44 will move the forward end of the bed near to the second roller 45, thus increasing the leverage of the lever 50 and facilitating a complete removal of the loaded wagon-bed. Means for dumping the load from said bed when hauled to a place of removal consist of'a series of bars 53, that have their lower ends terminating at right angles and adapted to support the floor of the wagon-bed when said angular bars are moved below a series of bars 54, that project slightly beyond the sides of the wagon-bed. These bars 54 are rigidly secured to the floors 55, which are hinged at 56. The bars 53 are pivotally connected to a horizontal bar 57, that is rigidly attached to the sides of the wagonbed. The upper ends of said bars 53 are further pivotally connected to a reciprocating bar 58. This latter bar is moved back and forth to positions to support or release the floors of the wagon through a hand-lever 59. The said levers 59 have their lower ends fulcrumed on the sides of the wagon and their upper portions pivotally connected to the bar 58. This mechanism is shown in Fig. 1,and it will be understood said mechanism is duplicated on the opposite side of the wagon.

Having fully described my invention, I

claim as new and desire to secure by Letters Patent,

1. In a street sweeper, the combination with a carrying-frame, of a rotary brush, adjustable drag-bars connecting said brush to the frame, a carrier parallel with said brush and adapted to receive dirt directly therefrom, a casing inclosing said brush and carrier, andmounted on the axle of said brush with its forward end flexibly connected to the carrying-frame and a dirt-receptacle on one side of the frame below and adjacent to the discharge end of the carrier, substantially as shown and described.

2. In a street sweeper, the combination with the frame of a rotary brush; a carrier mounted parallel thereto; movable guideplates interposed in an inclined position between said brush and carrier, and a casing mounted on the axle of said brush, and inclosing said carrier, guide-plates and brush; and a flexible connection between the front portion of said casin g and the sweeper-frame.

3. In a street sweeper, the combination with a sweeper-frame, a rotary brush, and drag bars connecting said brush with the sweeper-frame, of a carrier having flexible connections throughout its length ,and mounted parallel and adjacent to said brush, two series of overlapping plates forming inclined guides to direct the dirt onto said carrier, the said plates being loosely mounted between the carrier and brush, anda casing mounted on the axle of the brush, and having flexible connect-ions with the frame of the sweeper.

4. In a street-sweeper, the combination IIO with a supporting-frame, and a rotary brush, of a carrier mounted parallel to said brush, and adapted to deliver dirt at one side of the machine, a receptacle on a side of the machine to receive said dirt, a cleaning-brush mountedbelow and parallel with the delivery end of said carrier, and an inclosing case mounted on the axle of the brush, and having a flexible connection With the frame of the n1achine,the said case inclosing the brush, carrier, and guide-plates.

5. In a street -sweeper, the combination with a supporting-frame of a rotary brush; a carrier running parallel with said brush, the said brush and carrier driven simultaneously fromthe main axle of the machine; a dustproof casing mounted upon the axle of the brush; adjustable drag-bars connecting the brush to the frame of the machine; flexible connections between said drag-bars, the front of the casing, and the frame of the machine; and a series of inclined guide-plates interposed between the brush and carrier to direct the dirt to the latter.

6. In a street-sweeper, the combination with the frame of the sweeper, of a rotary brush extending across the said frame; a series of movable plates mounted parallel with vsaid brush and adapted to yield in passing over obstructions, and to return to theirnor- 1nal positions after said obstruction is passed, a carrier mounted parallel with said plates, a casing inclosing said brush, plates and carrier, and having flexible connections with the frame of the sweeper, a dirt-receptacle on a side of the machine. adjacent to the delivery end of the carrier, and means on the frame of the sweeper adjacent to said dirt-receptacle for supporting a wagon-bed in juxtaposition to said dirt-receptacle.

7. In a street-sweeper, a carrying-frame having a dirt-receptacle on one side, and means for removably supportinga Wagon-bed adjacent to said dirt-receptacle, in combina tion with a Wagon-bed having a longitudinal channel or track on its lower side; rollers adapted to elevate said wagon-bed from the frame of the sweeper; one of said rollers adapted to fit in the said track, and the other of said rollers being in advance of the lastnamed roller, and means for dumping said wagon-bed, as herein shown and described.

8. In a street-sweeper, the combination with the sweeper-frame having a dirt-receptacle located on one side, and means for supporting an end of a wagon-bed adjacent to said dirt-receptacle, in combination with a dirt-carrier extending across the machine, and adapted to deliver dirt into said receptacle; a brush extending across the machine parallel with said carrier; a series of movablymounted guide plates between said brush and carrier, and an inclosing case flexibly mounted on the axle of the brush, and the frame of the machine.

In testimony whereof I affix my signature in presence of two Witnesses.

ELLSVVORTH BRENTLINGER.

Witnesses:

R. J. MoOARTY, L. L. ALLEN. 

